hmmmmm, no te creas, no me parece lo mismo... - 00494d19, Jul 25, 2011
"If I didn't know [any] better" (any is optional) is something one says when real life appears to severely contradict something you assume to be true. - webdunce, Jul 25, 2011
For example, if a person you think loves you is always mistreating you, you might say, "If I didn't know any better, I'd say you didn't love me at all." - webdunce, Jul 25, 2011
Real life (their mistreatment of you) appears to indicate they don't love you, but you "know" they do. - webdunce, Jul 25, 2011